A 17-year-old built this awesome rollercoaster in his yard
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A 17 year old built this awesome roller coaster in his yard last year.
Sammy Trechak is a fan of thrill rides, so he decided to make his own. Now he can ride "The Shadow Stalker" in his backyard everyday.
The coaster has a 10 foot drop, goes up to 20 miles per hour, and looks incredibly well-built. — Read the rest
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